Fix image upload structure for Miravia API compliance

🔧 Bug Fixes:
- Fixed product image structure to match Miravia API requirements
- Updated MiraviaProduct.php getData() method to wrap images in {"Image": [...]} format
- Updated MiraviaCombination.php getData() method to wrap SKU images properly
- Resolved error "[4224] The Main image of the product is required"

📋 Changes:
- Modified getData() methods to transform flat image arrays to nested structure
- Product images: images[] → Images: {"Image": [...]}
- SKU images: images[] → Images: {"Image": [...]}
- Maintains backward compatibility for empty image arrays

🎯 Impact:
- Product uploads will now pass Miravia's image validation
- Both product-level and SKU-level images properly formatted
- Complies with official Miravia API documentation structure

🤖 Generated with Claude Code (https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

connector-miravia/assets/css/miravia-admin.css

@@ -0,0 +1,148 @@
+/* 
+PRIMARY: #4c45e6
+accent: #6ee786
+*/
+
+.showHover {
+    visibility: hidden;
+}
+
+tr:hover .showHover {
+    visibility: visible;
+}
+
+span.minidate {
+    font-size: 10px;
+    line-height: 10px;
+}
+/* 
+th#miravia_data {
+    width: 180px;
+} */
+
+td.miravia_data.column-miravia_data {
+    width: 200px !important;
+}
+
+th#miravia_data {
+    width: 200px !important;
+}
+table.table-view-list.toplevel_page_miravia_settings {
+    table-layout: inherit !important;
+}
+span.created_via {
+    float: right;
+    font-size: 12px;
+    color: #08a1de;
+}
+.btn_config {
+    text-decoration: none;
+    color: #4c45e6;
+    border: 1px solid #dfdfdf;
+    background: #dfdfdf;
+    width: 45%;
+    padding: 0.5rem;
+    float: left;
+    margin: 0.5rem;
+    cursor: pointer;
+    height: 140px;
+    display: block;
+    border-radius: 10px;
+    transition: all 0.5s ease;
+}
+.btn_config:hover {
+    background-color: #b0aed2;
+    /* color: #FFF; */
+}
+
+.btn_config h4 {
+    color: #4c45e6;
+    font-size: 30px;
+    margin: 0;
+    font-weight: bold;
+    text-align: center;
+}
+
+.btn_config:hover  h4 {
+    /* color: #FFF */
+}
+
+.stats {
+    /* border: 1px solid #4c45e6; */
+    padding: 0.5rem;
+    margin: 0.5rem; 
+    height: 140px;
+}
+
+.stats-1 {
+    width: 23%;
+    float: left;
+}
+.stats-2 {
+    width: 48%;
+    float: left;
+}
+.stats-3 {
+    width: 73%;
+    float: left;
+}
+
+.stats-4 {
+    clear: both;
+}
+.wrap.miravia-pane {
+    max-width: 1024px;
+    margin: auto;
+}
+.miravia-pane .description {
+    font-size: 10px;
+    display: block;
+    font-weight: lighter;
+}
+ul.miravia_categories_select {
+    background-color: '#FFF';
+} 
+ul.miravia_categories_select ul.children {
+    margin-left: 25px;
+}
+
+.region_config_dashboard {
+    max-width: 1024px;
+    margin: auto;
+    left: 0;
+    right: 0;
+    position: relative;
+    display: block;
+}
+
+/* tabs */
+a.mv-bt-tab {
+    padding: 10px;
+    display: block;
+    border-radius: 4px 4px 0 0;
+    border: 1px solid #CCC;
+    border-bottom: 0px solid;
+    text-decoration: none;
+    color: #333;
+    font-weight: bold;
+    outline: none;
+}
+
+.mv-tab-nav {
+    border-bottom: 1px solid #CCC;
+}
+
+.mv-tab-nav li {
+    margin: 0;
+}
+
+a.mv-bt-tab.active {
+    background: #CCC;
+}
+
+.mv-tab {
+    display:none;
+}
+.mv-tab-active {
+    display:block;
+}